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clean-up

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neargye 2022-03-31 18:19:58 +04:00
parent 5e6637ecde
commit 25d7f64dfb
1 changed files with 5 additions and 5 deletions
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10
include/magic_enum.hpp
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@ -727,19 +727,19 @@ struct constexpr_hash_t<Value, std::enable_if_t<std::is_same_v<Value, string_vie
0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL,
0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL 0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL
}; };
constexpr std::uint32_t operator()(string_view val) const noexcept { constexpr std::uint32_t operator()(string_view value) const noexcept {
auto crc = static_cast<std::uint32_t>(0xffffffffL); auto crc = static_cast<std::uint32_t>(0xffffffffL);
for (const auto c : val) { for (const auto c : value) {
crc = (crc >> 8) ^ crc_table[(crc ^ static_cast<std::uint32_t>(c)) & 0xff]; crc = (crc >> 8) ^ crc_table[(crc ^ static_cast<std::uint32_t>(c)) & 0xff];
} }
return crc ^ 0xffffffffL; return crc ^ 0xffffffffL;
} }
struct secondary_hash { struct secondary_hash {
constexpr std::uint32_t operator()(string_view val) const noexcept { constexpr std::uint32_t operator()(string_view value) const noexcept {
auto acc = static_cast<std::uint64_t>(2166136261ULL); auto acc = static_cast<std::uint64_t>(2166136261ULL);
for (const auto v : val) { for (const auto c : value) {
acc = ((acc ^ static_cast<std::uint64_t>(v)) * static_cast<std::uint64_t>(16777619ULL)) & std::numeric_limits<std::uint32_t>::max(); acc = ((acc ^ static_cast<std::uint64_t>(c)) * static_cast<std::uint64_t>(16777619ULL)) & std::numeric_limits<std::uint32_t>::max();
} }
return static_cast<std::uint32_t>(acc); return static_cast<std::uint32_t>(acc);
} }